Leica Telyt-R 400mm f/6.8 - Leica R Mount

The Leica Telyt-R 400mm f/6.8 is a unique long-telephoto lens designed for the Leica R-series SLR cameras. It features a two-element achromatic design housed in a simplified, modular barrel. Unlike traditional lenses, it uses a rapid 'slide-focus' trombone-style mechanism, allowing for very fast adjustments. It is highly regarded for its portability and surprisingly high contrast and sharpness despite its simple optical construction. Check the slide-focus mechanism for smooth, grit-free travel and ensure the locking button functions correctly. The lens often separates into two parts for transport; the connection threads should be clean and undamaged. We inspect the simple optical group for any signs of edge separation or internal haze. The built-in shoulder stock or tripod mount should be checked for stability.